In some countries the separation is unclear. Take ai for instance - regulation demands come from corporations to governments rather than the other way around. And thats happening in basically everything we do. Like in communism, the masses are employed in these massive enterprises that benefit from government money and friendly regulation, but regulation flows from corporations to governments while money flow the other way around (see bailouts and friendly policies). Furthermore politicians use corporations to influence our daily lives and to monitor our behaviour such that they know how to exploit our fears in order to gain and maintain power (see Cambridge analytica).
As such corporations are a tool of oppression, anti capitalism and anti freedom. Therefore you have to squeeze them out in order to be able to return to democratic capitalism.